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How many bots does JS have on?

We are talking about your usual daily spam bots - those that we are trying to protect from using captcha.

How many of them can run JS in some kind of built-in browser?

If this is a very small amount, then how can you use such solutions: http://wcaptcha.wozia.pt/sample.php

Besides the obvious use / availability issues, these drag-n-drop solutions require the client to have JS. There is not even a reserve. So, assuming it is designed to protect against bots (non-humans), isn't it completely redundant, or at least redundant, how many bots will technically be able to attempt to do such a thing?

If the client has JS (which is a prerequisite for this solution to work), is it not safe (within reasonable limits) to assume that the client is not a bot?

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This is not redundant. If you just discover Javascript, people can still load instances of Selenium and pretend to be a comment. The number of spam bots doing this now is in the minority, but as spam wars develop, you can bet that spam bots will switch to other methods, such as using a browser. If you discover Javascript and make them drag something, it will definitely prove that you are human.

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I have reduced our spam by more than 90%, so you should use it by type of Captcha, unless you are a large business. If you are a large business, the only real solution is the server-side server solution. Good luck with that on StackOverflow. They will close your comment faster than people can respond to it. (and he will have a better Google rating than anything there)

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Source: https://habr.com/ru/post/1796034/

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